Changeset 166
- Timestamp:
- 08/24/15 16:34:01 (9 years ago)
- Location:
- altifloat/doc/ocean_modelling
- Files:
-
- 3 added
- 1 edited
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altifloat/doc/ocean_modelling/elsarticle-template-harv.tex
r165 r166 39 39 %% The amssymb package provides various useful mathematical symbols 40 40 \usepackage{amssymb} 41 \usepackage{multimedia} 42 \usepackage{amsfonts} 43 \usepackage{amsmath} 44 \usepackage{multimedia} 45 \usepackage{graphics} 46 \usepackage{bbm} 47 \usepackage{pstricks} 48 \usepackage{amsthm} 49 \usepackage{graphics} 50 \usepackage{pgf} 51 \usepackage{wrapfig} 52 \usepackage{mathtools} 53 \newcommand{\vectornorm}[1]{\left|\left|#1\right|\right|} 54 \newcommand{\bo}[1]{\mathbf{#1}} 55 %\newcommand{\vectornorm}[1]{\left|\left|#1\right|\right|} 56 \newcommand{\dif}[2]{\frac{\partial #1}{\partial #2}} 57 \newcommand{\diff}[2]{\frac{\partial^2 #1}{\partial {#2}^2}} 58 \newcommand{\odif}[2]{\frac{d #1}{d #2}} 59 \newcommand{\odiff}[2]{\frac{d^2 #1}{d #2^2}} 60 41 61 %% The amsthm package provides extended theorem environments 42 62 %% \usepackage{amsthm} … … 108 128 \section{Data} 109 129 \section{Method} 130 \begin{itemize} 131 132 \item $\vec{U_0}=\vec{U}_{b}+\vec{\delta U},$ $\vec{U}_b=\textcolor{red}{\vec{U}_{alt}}$ and $\vec{r}=\vec{r}^{\,b}+\vec{\delta r}$ 133 \item Model and Linear tangent (forward Euler for the numerical integration, and bilinear Lagrange interpolation in space for instance): 134 \small{ 135 \begin{align} \notag 136 &\vec{r}^{\,b}_i(k\delta t)=\vec{r}^{\,b}_i((k-1)\delta t)+2\delta t \, interp(\vec{U}^b, \vec{r}^{\,b}_i((k-1)\delta t)),\,\,\,\,\, \text{\textcolor{blue}{model}} \\ \notag 137 &\vec{\delta r}_i(k\delta t) = \vec{\delta r}_i((k-1)\delta t) + 2 \delta t \, \{ interp(\textcolor{green}{\vec{\delta U}},\vec{r}^{\,b}_i((k-1)\delta t)) \\ \notag 138 &+ \vec{\delta {r}}_i((k-1)\delta t) \cdot \partial _{(x,y)} interp (\vec{U}^b,\vec{r}^{\,b}_i((k-1)\delta t))\} \,\,\, \text{\textcolor{blue}{tangent}} \notag 139 \end{align} 140 initialized with observations, for $k=1,2,3, \cdots $ and $i=1, \cdots N_{drift}$ 141 } 142 %\vec{r}(0)= \vec{r}^{o}(0)$ 143 \item Perform sequences of optimization 144 \[\mathcal{J}(\textcolor{green}{\delta \vec{U}})= \frac{1}{2} \left \{ \sum _i \sum_{m=1}^{P} \vectornorm{\vec{r}^{\,b}_i+\delta \vec{r}_i(\textcolor{green}{\delta \vec{U}}) -\vec{r}_i^{\,o}(m\Delta t) }^2 +\vectornorm{ \textcolor{green}{\vec{\delta U}} }^2_{\bo{B}} \right\} \] 145 $P$ depends on $T_{L}/\Delta t$. $T_L$ characteristic of autocorrelation of drifters (typical 1-3 days) 146 147 %+\sum_{i,m=1}^{m=P} \vectornorm{\vec{r}^{\,b}+\delta \vec{r}(\textcolor{green}{\delta \vec{u}}) -\vec{r}_i^{\,o}(m\Delta t) }^2 \right] \] 148 \end{itemize} 149 150 151 152 110 153 \section{Twin Experiments} 111 154 \section{Experiment with Real Data}
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